Simulation analysis method for strength of speed reducer shell

According to the speed reducer shell strength simulation analysis method, a script program is programmed and developed in CAE analysis software by utilizing node numbers or node set names of all loading points and load data of all the loading points under 28 working conditions, and a Step module file containing Load data of all the working conditions is automatically written through the script program; the shell grid file and the Step module file are combined to form a shell strength calculation file, automatic writing of the speed reducer shell strength calculation file under the 28 working condition load is achieved, after optimization iteration is conducted on a shell simulation analysis model, a new grid file is used for replacing a grid file corresponding to the shell simulation analysis model before iteration, and then submission calculation can be conducted again. The output efficiency of the shell strength calculation file under the 28 working condition load is improved, and the accuracy, operability